Dipping-vat for building-paper, &amp;c.



C. M. CLARKE.

DIPPING VAT FOR BUILDING PAPER, &c.

APPLICATION FILED OCTJ, 1920.

1 381 967 Patented June 21, 19210 2 SHEETS-SHEET I.

C. M. CLARKE.

DIPPING VAT 'FOR BUILDING PAPER, m.

APPLICATION FILED OCT. 7, I920.

PatentedJune 21, 1921.

2 SHEETS-SHEET 2.

from the breakage of said paper.

CECIL M. CLARKE, 0E CEEGAGG, ILLIITUIS.

DRYING-VAT FOR :B-UED'DTG'PAFER; dw.

Specification of Letters Eatent. Patent gm J 511mg 2L 1 2 B Application filed October 7, 1920. Serial No. 415,238.

To all whom it may concern:

Be it known that I CECIL M. CLARKE, a citizen of the United tates, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Dipping-Vats for Building-Paper, &c., of which the following is a full, clear, and exact description.

Hereto'fore this has been done in an apparatus employing a vat or tank by drawing the paper through the liquid in a comparatively straight course or over and under staggered rolls. The length of the paper being immersed was necessarily limited to the length of the course it followed, and the period of saturation was limited to the length of time it took to travel such course.

As the output of the apparatus depended upon the speed at which the saturation could take place, the paper was drawn through the vat as fast as possible and subjected to such a strain that it frequently broke and caused considerable delay and expense.

My improvements are designed to saturate a much greater length of paper invats of the same liquid capacity as those heretofore used to subject the paper to a more thorough sa'turation for a longer period of time, and to discharge said saturated paper at a very much greater speed than was heretofore possible without subjecting the same to any strain and the delays and expense resulting This I accomplish by the means hereinafter fully described and as particularly pointed out in the claims.

In the drawings:

Figure 1 is a longitudinal vertical section of a vat, showing my improvements applied thereto.

Fig. 2 is a plan view of the same.-

In the drawings, 5, represents a comparatively long vat which is of a suitable depth and is of a width sufficiently greater than the width of the paper 6 threaded through the same so as to provide the desired clearance. Que end of said vat is provided with brackets, 7, T, and standards, 8, 8, are supported upon these brackets and have bearings for transverse feed-rollers, 9 and 10. The bearings of the lower feecbroller are stationary, but the bearings of the upper roller consist of blocks {not shown) that are adjustable up and down in the vertically elongated slots 11 in said standards by means of screws 12 whose upper ends are provided with hand-wheels with which to turn them.

lhe web of paper 6 is passed between rollers 9 and 10, thence pass forward over an idle-roller 1d and then down into the vat, where it is immersed and engaged by and carried to the opposite end of the tank in a sense of loops or festoons by a suitable conveyer, as indicated by the arrow in Fig. 2 of the drawings; This conveyer consists of two corresponding endless chains 15, 15, near and parallel to the inner surface of each side of the vat, and these chains are mounted upon and engaged by sprocket-wheels 16, 17, 18, and 19 that are mounted on and revolve with transverse shafts 16 17, 18 and 19, respectively. Two of these shafts are situated near the top of the vat at such an altitude that the sprockets thereon and the upper stretches of the chains, 15, will be wholly immersed in and below the surface of the liquid,

and the other two sprocket-wheels 18*and 19 are located below the same near thebottom otthe vat. All of these shafts are journaled in the sides of the vat, and one, preferably shaft 16 has one end extending through its bearing and a sprocket-wheel 20 securely mounted thereon. Sprocket-wheel 20 is connected to a-sprocket-wheel 35 securely mounted on the extended end of the journal of roller 9 through the medium of which it derives motion. I a

The conveyer chains 15 are connected by a series of transverse bars 21, 21, that are,

preferably, separated an equal distance apart, say every twelve inches. When the machine is in operation the upper stretch of said chains move. at aicomparatively slow speed toward the end of the vat opposite the feed-rollers. When the bars 21 arrive in succession at a point immediately over the shaft 16 the paper between said bar and the bar preceding it is pushed downward to form a loop or festoon by a downwardly plunging roller 22.

At theinstant this roller 22 plunges downward, the bend of the, paper hung on said preceding bar 21 will be engaged by a transverse roller 23 the weight of which is such that it will prevent the rearward movement or slipping of the paper at the time the ends of axially alining separated sections of a transverse shaft 30, the outer ends of which are j ournaled in hearings in the upper ends of uprights 31-, 31, which latter have their bases supported u on and secured to the sides of the vat. ear the bearing of the outer end of one of the sections of shaft 30 it has a sprocket-wheel 32 securely mounted thereon and this sprocket is connected by an endless chain 33, to a sprocket-wheel 34 mounted on shaft 16 alongside of sprocketwheel 16 within the tank.

The connecting of the shafts on which the sprocket-wheels 35, 20, 32, are mounted enables the making and assembling of these parts so that their relative movements and action can be timed to accomplish the objects of my improved apparatus as hereinbefore set forth, and to enable the conveyer tocarry the series of corresponding-loops of paper to the discharge end of the tank where the paper is removed. When the advanced bar 21 of the most advanced loop arrives at a point immediately over shaft 17*, a pair of withdrawal-rollers, 36 and 37 to and between which the paper passes, draws said paper forward and takes up the said loop while thechains 15 are moving forward a distance corresponding to that between said bars 21.

Rollers 36 and 37 are journaled in standards 39, 39, whose bases rest upon and are secured to the platforms of brackets 40, secured to the outer side of the discharge end of the vat. The lower discharge-roller 36 has stationary hearing but the bearings of the upper roller are adjustable in vertically elongated slots 41 in said standards by means of screws 42. The feed-rollers and the discharge-rollers revolve at the same speed, the latter taking their motion from the shaft 17 through the medium of sprocket-wheel 43 mounted on the extended end of said shaft 17 and sprocket-Wheel 44, on the extended end of-the journal of the upper discharge-roller 37, and chain 45:

In order to provide the necessary length of paper to enable the first loop to be made with pulling, the feed-rollers .are revolved at such a speed that the slack for the -first loop within the vat is accumulated between the front end of the vat and the feed-rollers for the first loop, substantially as shown in meme? dotted lines in Fig. I the dra ngs. This is the preferred way of supplying the necessary length of paper for the construction tudinally through the same.

3. An apparatus of the kind specified comprising a vat, means for feeding a continuous web of paper to said vat and a conveyer having separate members adapted to carry said web in individual loops through the same.

4. An apparatus of the kind specified com- 4 prising a vat, rollers for feeding a continuous web of paper to said vat, rollers for withdrawing said web from the same, and a conveyer having individual members adapted to carry the web in individual loops throu h said vat,

' 5. n apparatus of the kind specified comprising avat, rollers for feeding a continuous web of paper to said vat, in a rectilinear path, rollers for withdrawing said web from the same, a conveyer adapted to receive said web from said feed-rollers and convey the same to said withdrawal rollers, and means for diverting the web from its rectilinear path for looping said web as it is received by said conveyer.

6. An apparatus of the kind specified comprising a vat, and a conveyer. Within said vat adapted to carry a continuous web of paper in'loops through the same and consisting of corresponding endless chains that travel in a rectangular course, sprocketwheels therefor at the angles of said course, and transverse bars connecting said chains and separated at suitable intervals apart.

7. An apparatus of the kind specified comprising a vat, and a conveyer within said vat adapted to carry a continuous .web of paper in loops through the same and consisting of corresponding endless chains that travel in a rectangular course, sprocketwheels therefor at the angles of said course, and equi-distant transverse bars connecting said chains.

8. An apparatus of the kind specified comprising a vat, and a conveyer within said vat adapted to carry a continuous web of paper in loops through the same and consisting of corresponding endless chains that travel in rectangular course, sprocket-wheels therefor at the angles of said course, transverse bars connecting said chains, andmeans for forming depending loopswhile sald con- I veyer is in operation.

9. An apparatus of the kind specified comprising a vat, and a conveyer within said vat adapted to carry a continuous web oftravel in a rectangular course, sprocketwheels therefor at the angles of said course, transverse bars connecting said chains, a transverse roller for forming depending loops while said conveyer is in operation,

- and a vertically movable depending plunger in the lower ends of the bifurcations of which said last mentioned roller is journaled.

11. An apparatus of the kind specified comprising a vat, and a conveyer within-said vat adapted to carry a continuous web of paper in loops through the same and consisting of corresponding endless chains that travel in rectangular course, sprocket-wheels therefor at the angles of said course, trans verse bars connecting said chains, a transverse roller for forming depending loops while said conveyer is in operation, a vertically movable depending plunger in the lower ends of the bifurcations of which said last mentioned roller is journaled, disks between which the upper end of said plunger is pivoted, and a transverse shaft having two alining sections to the separated opposing ends of which said disks are secured.

12. An apparatus of the kind specified comprising a vat, feed-rollers that supply a continuous web of paper thereto, withdrawal-rollers that withdraw said web therefrom, and a conveyer within said vat adapted to receive the web from the feed-rollers and carry the same in loops to said withdrawal-rollers, said conveyer consisting of corresponding endless chains that travel in a rectangular course, sprocket-wheels therefor at the angles of said course, and transverse bars upon which said loops are hung connecting said chains and separated at suitable intervals apart.

13. An apparatus of the kind specified comprising a vat, feed-rollers that supply a continuous web of paper thereto, withdrawal rollers that withdraw said web therefrom, a conveyer within said vat adapted to receive the web from the feed rollers and carry the same in loops to said withdrawalrollers, said conveyer consisting of corresponding endless cha1ns that travel 111 a rectangular course, sprocket-wheels therefor at the angles of said course, and transversebars upon which said loops are hung connecting said chains and separated at suitable intervals apart, and means for forming said loops while said conveyer is in operation.

14. An apparatus of the kind specified comprising a vat, feed-rollers that supply a continuous web of paper thereto, withdrawal-rollers that withdraw said web therefrom, a conveyer within said vat adapted to receive the web from the feed-rollers and carry the same in loops to said withdrawalrollers which consists of corresponding endless chains that travel in a i'ectangular course,- sprocket-wheels ftlrereiior at the angles of said course, and transverse bars upon which said loops are hung connecting said chains and separated at suitable intervals apart, and a roller for fo'rming said loops while said conveyer is in operation.

15. An apparatus of the kind specified comprising a vat, feed-rollers that supply a continuous web of paper thereto, withdrawal-rollers that withdraw said web therefrom, a conveyer within said vat adapted to receive the web from the feed-rollers and carry the same in loops to said withdrawalrollers which consists of corresponding enclless chains that travel in a rectangular "course, sprocket-wheels therefor at the angles of said course and transverse bars upon which said loops are hungconnecting said chains and separated suitable intervals apart, a transverse roller for forming said loops while said conveyer is in operation and a vertically movable depending plunger 1n the lower ends of the bifurcatwns of which said last mentioned roller is journaled.

16. An apparatus of the kind specified comprising a vat,feed-rollers that supply a continuous web of paper thereto, withdrawal-rollers that withdraw said web therefrom, and a ccnveyer within said vat adapted to receive the web from the feedrollers and carry'the same in loops to said withdrawal rollers which consists of corresponding endless chains that travel in a rectangular course, sprocket-wheels therefor at the angles of said course and transverse bars upon which said loops are hung connecting said chains and separated at suitable intervals apart, and a transverse roller for forming said loops while said conveyer is in operation, a vertically movable depending plunger in the lower ends of the bifurcations of which said last mentioned roller is journaled, disks between which the upper end of said plunger is pivoted, and a transverse shaft having two alining sections to the separated ends of which said disks are secured.

17. An apparatus of the kind specified comprising a vat, and a conveyer within said travel in rectangular course,

verse bars connecting said chains, means for forming depending loops while said conveyer is in operation and a device for pre- 'ventin the rearward movement of said web.

18. n apparatus of the kind specified comprising a vat, and a conveyer Within said vat adapted to carry a continuous web of paper in loops through the same and consisting of corresponding endless chains that travel in rectangular course, sprocket-wheels therefor atthe angles of said course, transverse bars connecting said chains, means for forming depending loops while said conveyer is in operation and a transverse roller that bears down upon the second transverse bar from the receiving end of the vat while the loop is being formed between the same and the first bar. a

19. In combination, a vat, a conveyer in sprocket-wheels therefor at the angles of said course, transsaid vat, provided with individual spaced members, means for feeding a web to said conveyer at a greater speed than that of the conveyer, and means for forming a plurality of loops successively in said web for reception upon said members.

20. In combination, a vat, a conveyer in said vat, provided with individual spaced members, means for feeding a web to said conveyer at a greater speed than that of the conveyer, and means engaging the web upon entrance of the same to the vat for forming successively a plurality of loops in said web {)or reception individually upon said'me mersr 21. In combination, a vat, a web to be passed-through said vat, and means for conveying the web through the vat in positively spaced individual loops.

' In witness whereof I have hereunto set my hand this th day of September, 1920.

CECIL 'M. CLARKE.

Witnesses P. E. EHRET, R. H. LAWRENCE. 

